Device for producing skin care pack using hydrogel, and control method thereof

ABSTRACT

A device for producing a skin care pack using hydrogel and a control method of the device are disclosed. The device includes a housing which is provided with a door for selectively opening and closing a work space for forming a skin care pack, and which maintains a forming temperature required for producing the skin care pack; a platform having a base supported on a floor plate of the work space of the housing; a former including one or more nozzle modules which are provided to be movable in the work space, and each of which includes a pump for receiving a heated hydrogel and then discharging it onto the platform through a nozzle, and includes a cooling device for cooling a pump motor of the pump; and a control unit for controlling the discharge of the hydrogel from the nozzle modules.

TECHNICAL FIELD

The present invention relates to a device for producing a skin care packusing hydrogel, and a control method thereof.

BACKGROUND ART

In general, a mask pack is a kind of cosmetic which can relativelyconveniently and effectively perform skin care such as skin winkle, skinelasticity, gloss or the like by supplying moisture and nutrition toskin.

Such mask pack may be tailored in view of a face contour and positionsof eyes, a nose and a mouth on a face model basis for each year group ofusual users. In addition, in the case of a three-dimensional mask pack,it may be constituted by a plurality of sheet parts so that it canclosely contact each part of a face, such as a forehead, both chicks,nose, chin and the like.

The mask packs have various forms such as a sheet product of non-wovenfabric material to which a liquid such as a skin lotion is applied, amask pack product which improves wearing-feeling by having an essencecontained within a fabric, such as cotton, a mask pack product whichuses hydrogel, or a bio-cellulose mask pack product which uses a naturalmaterial. As the mask pack product using the hydrogel among these has anadvantage that a functional component for skin care is selectivelycontained or mixed, demand for a hydrogel mask pack is increasing.

Meanwhile, a manufacturer mass-produces and supplies mask packs to themarket using a factory automation system which can produce a greatnumber of mask packs for a short time period after determining a productstandard based on a face model of a universal user for mass production.

The mask packs supplied by mass-production are getting good response inthe market because they exhibit their effects beyond a certain level ainexpensive price. But a user cannot use a mask pack which perfectlyfits to his/her own skin due to the limit of mass production system. So,there is a drawback that a user cannot feel enough satisfaction with it.

Under this background, recently there have been trials to produce acustom-tailored mask pack. Specifically, there is suggested a technologywhich generates a 3D model of a user face, and produces a mask pack fitto a face shape of a user using it. This prior art is characterized byfabricating a base such as non-woven fabric or cotton based on modeleddata so as to fit to a user's face, or applying substance for skin careto a specific region of the base in view of a face shape of a user.

However, a device for producing the above-described customized mask packor a producing method is applicable to a mask pack having a base, butnone of them can be applied to producing a hydrogel mask pack for whichdemand is increasing recently. That is because hydrogel is in asemi-solid state at a room temperature and thus is required to be heatedfor forming, which may lead to a drawback that, when the hydrogel isheated, its viscosity is decreased and the hydrogel leaks from a nozzlethrough which the hydrogel is discharged. That is, with the priormanner, it is very difficult or substantially impossible to preciselycontrol a discharge timing, a discharge position and a discharge amountof the hydrogel in order to produce a customized mask pack.

Further, if the heating temperature of the hydrogel is lowered in orderto prevent this problem, its viscosity enough for forming cannot beacquired, and thus there is no way except that productivity of a maskpack is extremely lowered or quality of the final product becomes verybad,

With regard to this, Korean patent application publication No.10-2017-0070699 (Published on Jun. 22, 2017) provides “Manufacturingmethod of 3D-hydrpogel mask”, and however, it is only intended tooptimize the hydrogel contents, while still having the above-describedproblem. Thus, it cannot become a substantial countermeasure forproducing the hydrogel mask pack.

Meanwhile, nowadays, as the interest in skin care increases, skin careproducts for each part of a physical body such as a hand, an arm, afoot, a leg or the like are being launched, and however, such skin careproducts also have the above-described problem. Therefore, there is anincreasing need for a customized product and a product for which a rawmaterial is the hydrogel.

DISCLOSURE Technical Problem

Embodiments of the invention provide a device for producing a skin carepack for which a raw material is hydrogel, and a control method thereof.

Additionally, embodiments of the invention provide a manufacturingdevice for producing a skin care pack rapidly and precisely in spite ofusing hydrogel as a raw material, and a control method thereof.

Further, embodiments of the invention provide a manufacturing device forproducing a high quality hydrogel skin care pack and a control methodthereof.

Also, embodiments of the invention provide a device for producing a skincare pack using hydrogel, which is optimized for body characteristics ofa user, and a control method thereof.

Technical Solution

According to an aspect of the present invention, there is provided adevice for producing a skin care pack using hydrogel, the devicecomprising; a housing which is provided with a door for selectivelyopening and closing a work space for forming a skin care pack and whichmaintains a forming temperature required for producing the skin carepack; a platform having a base supported on a floor plate of the workspace of the housing; a former including one or more nozzle moduleswhich are provided to be movable in the work space, each nozzle modulehaving a pump for receiving a heated hydrogel and then discharging sameonto the platform through a nozzle and a cooling device for cooling apump motor of the pump; and a control unit for controlling the dischargeof the hydrogel from the nozzle modules, by controlling the movement ofthe nozzle modules, the operation of the pumps, and the operation of thecooling devices, wherein the cooling device includes a cooling fan whichgenerates flow toward the pump, and which cools down the pump motor withthe flow generated by the cooling fan, the flow discharged from thecooling device is discharged to the work space by way of the pump motor,the cooling device includes a cooling housing which guides flow formedby the cooling fan, and the cooling housing includes an intake openingthrough which air in the work space is sucked, and an air-dischargeopening through which air that has absorbed heat of the pump motor isdischarged to the work space.

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein the cooling fan is disposed on an upper part of thepump motor,

According to another aspect of the present invention, there is provideda device for producing a skin care pack using hydrogel, the devicecomprising a housing which is provided with a door for selectivelyopening and closing a work space for forming a skin care pack and whichmaintains a forming temperature required for producing the skin carepack; a platform having a base supported on a floor plate of the workspace of the housing; a former including one or more nozzle moduleswhich are provided to be movable in the work space, each nozzle modulehaving a pump for receiving a heated hydrogel and then discharging sameonto the platform through a nozzle and a cooling device for cooling apump motor of the pump; and a control unit for controlling the dischargeof the hydrogel from the nozzle modules, by controlling the movement ofthe nozzle modules, the operation of the pumps, and the operation of thecooling devices, wherein the nozzle module includes: a syringe storinghydrogel; a nozzle disposed spaced apart under the syringe; and a mainblock which is disposed between the nozzle and the syringe, whichbecomes a support base of the syringe, which provides a raw materialflow path, and to which a heater for heating hydrogel is mounted, thepump is installed at the main block so as to be penetratingly connectedto the raw material flow path of the main block and pumps a raw materialof the syringe and supplies the same toward the nozzle, and the coolingdevice includes a cooling fan which is disposed at a side of the mainblock and generates flow toward the pump, and a fan motor which rotatesthe cooling fan. Further, there is provided a device for producing askin care pack using hydrogel, wherein the nozzle module includes: asyringe heating block which is erectly combined to a top plate of themain block and which includes a first semi-circular recessed portion incontact with an outer circumferential surface of a side of the syringe;and a syringe cover block which is disposed opposite the syringe heatingblock based on the syringe and which includes a second semi-circularrecessed portion in contact with an outer circumferential surface ofanother side of the syringe.

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein the syringe cover block further includes a skirt plateportion which is integrally extended from a lower surface of the secondsemi-circular recessed portion and protects the main block.

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein the cooling device includes a cooling housing whichguides flow formed by the cooling fan, and the cooling housing includesan intake opening through which air the work space is sucked and anair-discharge opening through which air that has absorbed heat of thepump motor is discharged to the work space.

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein the pump includes a pump bracket which becomes asupport base of the tube housing of the pump motor for mounting the pumpmotor on the main block, and to which the cooling housing is combined,

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein the cooling device includes a housing cover at whichthe fan motor is installed, and which is fixed to the cooling housing,and the cooling fan generates flow in a space formed by the coolinghousing and the housing cover.

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein. the intake opening is opened upward, theair-discharge opening is opened toward a lateral direction, and eitherthe cooling housing or the housing cover includes a guide wall whichguides air that has been sucked through the intake opening so that theair can be discharged through the air-discharge opening by way of thecooling fan.

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein the guide wall includes a flap having a shape of awall which is inclined toward the air-discharge opening at an end of theguide wall.

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein the end of the guide wall is disposed spaced apartfrom the pump motor, and between a side surface oldie cooling housing,and the guide wall and the pump motor, there is provided a space throughwhich air can flow.

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein the pump motor is accommodated in an inner space ofthe cooling, housing, and the air-discharge opening is formed adjacentto the pump motor.

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein the nozzle module includes a pump bracket which fixesthe pump to the main block, the pump bracket includes: a first mountprotrusions which has a fastening hole, and which is formed on an upperportion of the pump bracket; a second mount protrusions which has aninstallation hole, and which is formed on a lower portion of the pumpbracket; and a third mount protrusion which is formed at a side portionof the pump bracket, and which has a connection hole for connection tothe main block, the cooling device includes: a housing cover which isconnected to the first mount protrusion, and at which a fan motor and acooling fan for generating flow are installed; and a cooling housingwhich provides a space in which the cooling fan is accommodated to formflow, the housing cover is coupled to the first mount protrusion, themain block is combined to the third mount protrusion, and the coolinghousing is combined to the second mount protrusion.

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein the cooling fan is accommodated inside the coolinghousing,

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein the air-discharge opening is opened toward a directionopposite the main block based on the pump motor.

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein the housing cover further includes a plurality ofconnection terminal parts for connection to an electric wire extendedfrom the control unit to the nozzle module in order to connect the fanmotor, the heater, the pump motor and the temperature sensor to thecontrol unit.

Further, there is provided a device for producing a skin care pack usinghydrogel, wherein the housing cover is a plate bent at a right angle andincludes: a horizontal plate part at which the connection terminal partis installed; and a vertical plate part which is integrally bent at thehorizontal plate part, and at which the fan motor is installed.

According to another aspect of the present invention, there is provideda control method of a device for producing a. skin care pack usinghydrogel which forms the skin care pack, in which a control unitcontrols a relative movement of a platform on which the skin care packis formed and a former which discharges heated hydrogel, and hydrogel isdischarged toward the platform through at least one nozzle moduleprovided in the former. Wherein the nozzle module includes a main blockin which a heater is installed and a peristaltic pump installed in themain block, the control method comprising: controlling a temperature ofthe main block or a temperature of the hydrogel moving through the mainblock within a temperature range corresponding to a heating condition ofa skin care pack forming by activating the heater installed in the mainblock; controlling a relative movement of the platform and the former;discharging hydrogel heated by the heater from a nozzle of the nozzlemodule by activating a forward rotation operation of the peristalticpump; cooling a motor of the peristaltic pump by activating a coolingdevice provided at a side of the main block according to a predeterminedcondition; and returning the former to its initial position of operationby causing relative movement between the platform and the former after apattern part of a skin care pack has been completed.

Further, there is provided a control method of a device for producing askin care pack using hydrogel, wherein the activation of the coolingdevice according to a predetermined condition is controlled according toone or more of the followings: the cooling device being driven atpredetermined time intervals; the time for which the peristaltic pump iscontinuously driven departing from a predetermined range; temperature ofa motor of the peristaltic pump deviating from a predetermined range;temperature of a work space in which a skin care pack is formeddeviating from a predetermined range; and temperature of the main blockdeviating from a predetermined range.

Further, there is provided a control method of a device for producing askin care pack using hydrogel, wherein the cooling device includes acooling fan and a fan motor which suck air from a work space in which askin care pack is formed, generate flow to a motor of the peristalticpump, and discharge to the work space air that has absorbed heat fromthe motor of the peristaltic pump.

Further, there is provided a control method of a device for producing askin care pack using hydrogel, wherein the control unit is capable ofadjusting a rotational speed of the cooling fan.

Advantageous Effects

According to a device for producing a skin care pack using hydrogel anda control method thereof according to the embodiments of the presentinvention, there is an effect of being capable of producing a skin carepack for which a raw material is the hydrogel.

Further, there is an advantage of producing a skin care pack rapidly andprecisely even though using hydrogel as a raw material.

In addition, there is an advantage of being capable of producing a highquality a hydrogel skin care pack.

Further, there is an advantage of being capable of producing a skin carepack using hydrogel, which is optimized for body characteristics of auser.

DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view of a device for producing a skin care packusing hydrogel according to an embodiment of the invention.

FIG. 2 is an exploded perspective view of the device for producing askin care pack using hydrogel shown in FIG. 1.

FIG. 3 is an enlarged perspective view of the discharge unit shown inFIG. 2.

FIG. 4 is a perspective view of a nozzle module of a discharge unitshown in FIG. 3.

FIG. 5 is an exploded perspective view of the nozzle module shown inFIG. 4.

FIG. 6 is a front view of the nozzle module shown in FIG. 4.

FIG. 7 is a cross-sectional view taken along a line C-C shown in FIG. 6.

BEST MODE

Hereinafter, specific exemplary embodiments of the invention will bedescribed in detail with reference to the drawings.

Additionally, it is noted that in the description of the invention, thedetailed description for known related configurations or functions maybe omitted when it is deemed that such description may obscure essentialpoints of the invention.

FIG. 1 is a perspective view of a device for producing a skin care packusing hydrogel according to an embodiment of the present invention; andFIG. 2 is an exploded perspective view of the device for producing askin care pack using hydrogel shown in FIG. 1 and FIG. 3 is an enlargedperspective view of the discharge unit shown in FIG. 2.

Referring to FIGS. 1 to 3, a device 10 for producing a skin care packusing hydrogel according to an embodiment of the invention includes ahousing, 100, a platform 200, a former 300 and a control unit 400.

In the embodiment, as a device that is intended to produce a skin carepack for which a raw material is hydrogel and which may be attached tothe skin for use by a user, a device 10 for producing a skin care packusing the hydrogel may produce a skin care pack based on modeling datafor any body part such as a face, a hand, an arm, a foot, a leg or thelike of the user. In the embodiment and the description blow, the skincare pack using the hydrogel is described by way of example as being amask pack which is for attachment to a user's face, but the technicalidea of the invention s not limited to this.

The housing 100 may be provided with a work space 101 which becomes amovement space of a discharge unit H for forming a mask pack, and a door110 which selectively opens and closes the work space 101. The housing100 may be configured to maintain a forming temperature required forproducing a mask pack in a state where the door 110 is closed.

The platform 200 has a base 210 which is supported on a floor plate 102of the work space 101 of the housing 100, and whose movement in avertical direction controlled.

The former 300 may be disposed in the work space 101 of the housing 100with respect to an upper position of the platform 200. The former 300may discharge onto the platform 200 a raw material for forming a maskpack. For example, the former 300 functions to form a mask pack on thefilm 20 by discharging a raw material onto the film 20 which issupportable by or separable from the base 210 of the platform 200. Here,the raw material may be in a heating condition state, for example, astate where it is heated to a level of about 90° C., within the nozzlemodules 310, 350 of the discharge unit H. The heating condition may beset by the control unit 400 and controlled through a temperature sensor.For the purpose of this, a heater and a temperature sensor may bemounted on the former 300 as described below.

In the embodiment, a raw material or a mixed raw material which iscapable of being stored in a cartridge (not shown) or a syringe anddischarged by pumping in order to form a custom-tailored mask pack, andthe raw material may be one which has properties as a semisolidsubstance or gel at room temperature, but which, when it is heated, hasproperties as a liquid while its viscosity decreases below a certainlevel.

For example, the raw material may be any one of hydrogel, gel typesynthetic resin and a material which contains a raw material for afunctional cosmetic in polymer, and in the embodiment, it is describedby way of example as being the hydrogel.

The control unit 400 may include an input/output display device (e.g., atouch screen), an electronic circuit device and a power supply connectedthereto.

The control unit 400 may control operation of the former 300 and theplatform 200, receive the input of setpoints required fir forming a maskpack and custom-tailored model CAD data, and display an operation state.In addition, the control unit 400 may be disposed on a side portion ofthe housing 100. That is, the control unit 400 may control the relativemovement between the platform 200 and the former 300.

In this regard, the control unit 400 may calculate or set a movementpath of the former 300, a discharge speed, a discharge amount, adischarge timing of hydrogel or the like for forming a mask pack. Thatis, the control unit 400 controls the discharge of the hydrogel at thenozzle modules 310, 350. Basic data for this may be transmitted from theoutside through wired/wireless data communication, or through a storagemeans such as a USB or the like.

Further, the control unit 400 may have a temperature control algorithmby which a raw material forming temperature or heater operationtemperature of the former 300, or an operation temperature of a platformheater (not shown) attached to a lower surface of the base 210 of theplatform 200 is feedback controlled from a corresponding temperaturesensor.

The device 10 for producing a skin care pack using hydrogel of theembodiment may take a driving type of a Cartesian type 3D printer whichhas an optimal structure so as to produce a hydrogel mask pack based onraised temperature forming. Further, the device 10 for producing a skincare pack using the hydrogel is configured to discharge a raw materialin an extruding method by a pump such as a peristaltic pump. The device10 for producing a skin care pack using the hydrogel of the embodimentmay include a detailed configuration to be described later for rapidlyand accurately embodying customized mask pack production.

For example, the housing 100 may have a box-shaped wall structure. Thehousing 100 may be surrounded by exterior material suitable for acosmetic producing device, and be provided with a thermal insulatingmaterial (not shown) installed within the wall as an interior material.

As shown in FIG. 2, the housing 100 includes a rear wall 103 which isassembled or erected on the floor plate 102 so as to correspond to aboundary position of the work space 101. A power connector (not shown)connected to a power source terminal of the control unit 400 may beinstalled behind the rear wall 103.

Further, the housing 100 may include a pair of side walls 104, 105 whichare connected to both sides of the rear wall 103 and erected on thefloor plate 102. Also, the housing 100 may include a ceiling wall 106connected to upper ends of the pair of side walls 104, 105 and the rearwall 103, and the front of the housing 100 may be opened. Here, thefloor plate 102 of the housing 100 may be combined to lower surfaces ofthe rear wall 103 and the side walls 104, 105 by using a plurality ofbolts.

Further, in order to replace the syringe or take out a mask pack, thefront of the housing 100 and the work space 101 may be selectivelyclosed or opened correspondingly to opening and closing operation of thedoor 110 (e.g., rotation around a rotational axis of an x-axisdirection), For the purpose of this, the housing 100 may include atension gas spring 120 installed between the door 110 hinge-combined tothe ceiling wall 106, and a front surface of the side surface 104. Thetension gas spring 120 functions to maintain air open state of the door110 by supporting it at the time of rotational opening of the door 110,or to help the door 110 to be opened and closed smoothly. Further, thetension gas spring 120 may damp a shock at the time of closing of thedoor 110.

Also, the housing 100 may include a control unit casing 107 which isintegrally connected to an outer side of the right side fall 104, andwhich exposes an input/output display device of the control unit 400 tothe front direction of the housing 100.

The control unit casing 107 may be a control box including a powersupply device, an electronic circuit device for control, or the like. Inaddition, there may be a cable passage 108 on the right side wall 104 ofthe housing 100 for spatially connecting an inner space of the controlunit casing 107 and the work space 101 to each other.

Further, the housing 100 may include a driving device protection cover130 installed at the floor plate 102 of the housing 100 so as to cover alower portion of a linear driving device 221 of the platform 200 and alower portion of linear driving devices 321, 322, 323 of the former 300.

The driving device protection cover 130 may be a cap structure havingpartially penetrated areas 134, 135, and may prevent a portion of rawmaterial or foreign material from entering a rail or operation region ofthe linear driving devices 321, 322, 323 and causing a device failure.

For the purpose of this, parts located at lower portions of the y-axislinear driving devices 321, 322 and the z-axis linear driving device 221may be placed in an inner space of the driving device protection cover130. Contrarily, moving parts of the y-axis linear driving devices 321,322 and the z-axis linear driving device 221, and payload objects loadedon the moving parts thereof (e.g., the base 210, the x-axis lineardriving device 323, the discharge unit H) may be placed above thedriving device protection cover 130 through the penetrated areas 134,135 formed on an upper surface of the driving device protection cover130.

Like this, the linear driving devices 221, 321, 322, 323 are configuredto be separated into two axes (e.g., x-y axis) and one axis (e.g., zaxis), and thus it can stably produce a 3D skin care pack or mask packwhile relatively increasing accuracy of repeated movement of thedischarge unit H.

Further, in a lower surface of the driving device protection cover 130,a plurality of bolt holes (not shown may be formed for being combined tobolts installed on the floor plate 102.

Also, the driving device protection cover 130 may be constituted by afront cover portion 131 and a rear cover portion 132 which can beassembled or disassembled for installation and maintenance of theplatform 200 or the former 300.

On both cover wall portions at which the from cover portion 131 and therear cover portion 132 confront to each other, a recessed portion or aprotruding portion 133, such as concave and convex shapes, which can beengaged to each other, may be formed. As a result, the engagement andcontact between the front cover portion 131 and the rear cover portion132 can be made tightly.

In particular, the front cover portion 131 of the driving deviceprotection cover 130 may include a residue collecting receptacle 137with a mouth portion opened toward the z-axis direction for collectingresidues which are generated when washing the nozzle of the former 300.Specifically, an installation hole 136 may be formed on the uppersurface of the front cover portion 131. The residue collectingreceptacle 137 may be detachably inserted or led into the installationhole 136.

As a user can separate and wash the residue collecting receptacle 137,it is possible to perform maintenance and maintain cleanness with ease.Further, nozzle clogging resulting from replacement of a raw materialmay be prevented in advance.

Referring to FIG. 1 car FIG. 2, the platform 200 may include the z-axislinear driving device 221 which is installed on the floor plate 102 ofthe housing 100, and which is driven according to a control signalprovided from the control unit 400. In the embodiment, the z-axis lineardriving device 221 is described by way of example as being provided onthe platform 200 for 3D printing, but the z-axis linear driving device221 may be provided on the former according to an embodiment.

Also, the platform 200 includes the base 210 which is ascended ordescended along the z-axis direction by the z-axis linear driving device221, and which is disposed above the driving device protection cover 130of the work space 101 of the housing 100, and a plurality of filmholders 230,

A plurality (e.g., two) of films 20 may be placed on the base 210. Thefilm 20 may be fixed or separated by a plurality of film holders 230which can be attached or detached with respect to the base 210 by meansof a magnetic force.

For example, in case where a mask pack is constituted by two segmentscorrespondingly to an upper and lower portions of a user's head, theremay be two pattern parts. That is, the pattern part may be made on eachfilm 20. That is, the embodiment has an advantage that it is possible toprecisely produce a hydrogel skin care pack which is divided into aplurality of the pattern parts correspondingly to a three-dimensionalface shape of a user.

The former 300 may include the two y-axis linear driving devices 321,322 and the one x-axis linear driving device 323, which are controlledby the control unit 400 as described above so as to operate in linkagewith the platform 200. These linear driving devices 321, 322, 323 may belinear motors.

For example, the two y-axis linear driving devices 321, 322 for theformer 300 may be parallelly disposed on the floor plate 102 of thehousing 100 except an area where the platform 200 is installed. As thetwo y-axis linear driving devices 321, 322 are parallelly disposed, thepayload of the x-axis linear driving device 323 and inertial forcecaused by its movement can he stably supported, so that the mask packproduction can be precisely performed.

Also, the x-axis linear driving device 323 for the former 300 may bemoved by the y-axis linear driving devices 321, 322.

Further, at least one nozzle module 310, 350, which corresponds to thedischarge unit H, may be moved based on a moving plate (not shown) ofthe x-axis linear driving device 323 and the mount block 327 combined tothe moving plate.

As the discharge unit H of the former 300, these nozzle modules 310, 350are configured to satisfy requirements of a hydrogel discharge device.Here, the requirements of the hydrogel discharge device nay meanconvenience of charging and replacing a raw material, heatingperformance of a syringe, a tube and a nozzle for melting hydrogel,extrusion performance of a fixed amount of hydrogel, and maintenanceconvenience (e.g., washing and nozzle replacement).

The nozzle modules 310, 350 may be symmetrically arranged, and play arole of discharging toward the platform 200 the hydrogel as a rawmaterial for producing a mask pack.

FIG. 4 is a perspective view of the nozzle module of the discharge unitshown in FIG. 3, and FIG. 5 is an exploded perspective view of thenozzle module shown in FIG. 4. Further, FIG. 6 is a front view of thenozzle module shown in FIG. 4, FIG. 7 is a cross-sectional view takenalong a line C-C shown in FIG. 6.

Referring to FIGS. 3 to 7, the angle member 328 of the nozzle module 310may include an attachment plate 328 a which surface-contacts a frontsurface of the mount block 327 and which has a plurality of installationholes; a connection plate 328 b which surface-contacts a side surface ofthe main block 330 of the nozzle module 310 and which has a plurality ofconnection holes, and a cutaway portion 328 c formed in the connectionplate 328 b based on between the connection holes.

The nozzle modules 310, 350 may include a syringe 312, a nozzle 311 anda pump 340.

As the nozzle modules 310, 350 may be provided left-right symmetrically,the detailed configuration thereof will be explained based on the nozzlemodule 310 located right in order to avoid repeated explanation in thedescription below.

Specifically, the nozzle module 310 may include the pump 340 which is aperistaltic pump capable of performing ultra-:precise fixed amountdischarge in an extrusion manner for a. raw material such as hydrogel,so that it can be configured to be capable of continuously discharging araw material while satisfying heating condition suitable to propertiesof the raw material, such as hydrogel or the like, and not to leak a rawmaterial of a low viscosity through the nozzle 311, So, a mask pack canbe rapidly and precisely produced.

In detail, the nozzle module 310 may include the syringe 312 whichstores a raw material, and the main block 330.

First, the syringe 312 is a replaceable cartridge capable of beingattached to or detached. from the nozzle module 310, which correspondsto a raw material storage means.

Further, the nozzle 311 of the nozzle module 310 is disposed spacedapart wider the syringe 312. In this case, the nozzle 311 is detachablycombined to a raw material discharge hole of the main block 330. If ahole of the nozzle 311 is clogged, or if its replacement is needed, thenozzle 311 may be detached from the raw material discharge hole of themain block 330 by a user or a maintenance worker.

The main block 330 may be disposed between the nozzle 311 and thesyringe 312. The main block 330 may become a support base of the nozzle311, the syringe 312, and the angle member 328, and provide a rawmaterial flow path 331.

The nozzle module 310 includes the pump 340 which is installed to themain block 330 so as to be communicated to the raw material flow path331 of the main block 330, and which. pumps a raw material of thesyringe 312 to supply the same toward the nozzle 311. The pump 340 maybe connected to the main block 330 through a pump bracket 349, andreceive heat transfer from the main block 330 or a heater 332.

Here, the pump 340 may include a pump bracket 349 which becomes asupport base of the tube housing 344 of the pump motor 346 for mountingthe pump motor 346 on the main block 330, and to which the coolinghousing 510 is combined.

That is, the pump 340 may be connected to the main block 330 through apump bracket 349, and receive heat transfer from the main block 330 orthe heater 332.

The pump bracket 349 may become a support base or an installationposition of the tube housing 344. As one example, the tube housing 344may closely contact and be combined to the pump bracket 349 using aplurality of installation bolts (not shown).

For the purpose of this, the peristaltic pump, that is, the pump 340 maybe disposed at a lateral one side of the main block 330 vertical to theextension direction (e.g., gravity direction) of the syringe 3 12 andnozzle 311.

Further, the raw material flow path 331 may be heated by the heater 332.Further, the control unit 400 may control the heater 332 so thattemperature of the main block 330 measured by a temperature sensor 333to be described below can be maintained to a predetermined range,

Further, heat of the heater 332 may be transferred to a tube 341 of thepump 340, the nozzle 311, and a syringe heating block 334 through thetwain block 330 to which the one heater 332 is installed. Therefore,temperature of hydrogel, a raw material, can be stably maintained to arequirement value necessary for skin care pack production, and heattransfer efficiency can be maxi mixed.

The pump 340 may be a peristaltic pump so that a raw material which isheated by the heater 332 cannot be leaked from the nozzle 311 or cansatisfy the above-described hydrogel discharge device requirements. Thatis, the pump 340 may avoid cross contamination between a raw material tobe discharged and the pump 340, enable complete self-priming pumpingoperation thereof, and make safe run-dry possible without any damage tothe pump 340. Further, the pump 340 needs neither a valve nor a seal andhas a smooth pumping operation. So, it can be very ideal to deliveringhydrogel which is sensitive to deformation,

Also, as the pump 340 itself performs a role of temporarily stoppingflow of a raw material necessary for forming a mask pack when theoperation of the pump 340 is stopped, the reverse flow of a raw materialat the time of stopping the operation of the pump 340 may be preventedwithout any separate valve device, and the leakage of a raw material maybe prevented in advance. That is, the embodiment can prevent a rawmaterial, such as hydrogel, for producing a mask pack. from being leakedfrom the pump 340 in advance.

Further, the temperature sensor 333 and the heater 332 for generatingheat of heating conditions of a raw material or providing such heat to araw material may be installed to the main block 330. The heater 332basically heats the main block 330 and various constituting elementsconnected with respect to the main block 330. For example, the heater332 may perform heating operation to a temperature of the heatingconditions (e,g., 70° C. to 95° C.) for decreasing viscosity of a rawmaterial for mask pack production, such as hydrogel, on entire regionsof an extruding section, such as the main block 330, the nozzle 311, thetube 341 of the pump 340, the syringe heating block 334 and the syringe312.

For example, the heater 332 may be configured to apply heat to thesyringe heating block 334, the main block 330, the syringe 312, thenozzle 311 and the nozzle joint 311. Thanks to this, heat can bepreserved in a rear portion of the syringe 312 in which a raw materialis contained and a conveying section of a raw material, so thatoptimized viscosity can be maintained.

If a raw material is heated to a temperature of the heating condition orlower via the heater 332, it is difficult to perform conveying actionfor extrusion because of high viscosity, whereas if it is heated to atemperature of the heating condition or higher, there may occur degradedextrusion because air bubbles are generated due to evaporation ofmoisture of a raw material. For example, the raw material may maintain aviscosity ranging from 120 CPS to 2,500 CPS at a temperature rangingfrom 70° C. to 95° C. which enables the discharge through the nozzle.However, if it is heated to 100° C. or higher, a problem that waterwhich is one of components of the raw material is evaporated may occur.So, it is preferable to set the temperature of the raw material to be95° C. or lower for the purpose of safety.

The main block 330 is disposed at a central position of three directionswith regard to the syringe 312, the nozzle 311 and the pump 340 whichare connected to the main block 330 in each of the directions.Therefore, heat of the main block 330 can be transferred evenly to thesyringe 312, the nozzle 311 and the pump 340.

in particular, as a highest temperature ambience is formed at a lowerside of the syringe 312 by the heater 332, the hydrogel which iscontained in the syringe 312 at a low viscosity also forms a highesttemperature ambience at the lower side of the syringe 312. Due to this,convection currents occur in the hydrogel within the syringe 312, bywhich the entire hydrogel in the syringe 312 has a similar heatingstate. Therefore, the viscosity of the hydrogel discharged through thesyringe 312 may be maintained uniform, and thereby quality of forming amask pack and quality of a final product may be improved.

Further, there may be provided a cooling device 500 which is a means ofpreventing the pump motor 346 from being overheated by the heattransferred toward the pump 340. The device 10 for producing a skin carepack according to the embodiment may be installed in a store and drivencontinuously for several hours. in this case, the pump motor 346 may beoverheated, which in turn may lead to malfunction and failure of thepump 340. in order to prevent this, there may be provided the coolingdevice 500 at a side of the pump 340, and the cooling device 500 maycool the pump motor 346 by be operated according to a predeterminedalgorithm. The nozzle module 310 having the main block 330 and the pump340 can maintain an appropriate operation temperature with the aid ofthe cooling device 500 under a situation of discharging hydrogel, and inparticular, protect the pump motor 346 of the pump 340 from thermalload.

For example, the cooling device 500 may include a cooling fan 520 whichis disposed at a side of the main block 330 and generates a flow towardthe pump 340, and a fan motor 521 which rotates the cooling fan 520. Theabove-described control unit 400 may control a rotational speed of thecooling fan 520 via the fan motor 521.

Further, as the temperature sensor 333 is installed in the main block330 based on a position adjacent the heater 332, a temperature valuewhich is measured through the temperature sensor 333 and input towardthe control unit 400 may be used relatively precisely to perceive theheating condition of a raw material.

Meanwhile, the raw material flow path 331 of the main block 330 may beconfigured to turn the raw material discharged from the upper sidesyringe 312 to a side direction and transfer the same toward the pump340 side, and turn the raw material discharged from the lateral sidepump 340 to a downward direction and turn the same to the nozzle 311,and be connected to the U-shaped flexible tube 341 of the pump 340.

There may be provided quick couplers for tube piping at connectionpoints between both ends of the tube 341 and the raw material flow path331, and thus it is possible to easily replace the tube 341.

The tube 341 may be installed at the pump 340 based on a gap between aplurality (e.g., ten) of rollers 342, 343 in the pump 340 and a tubehousing 344 so that it can be pressed to be deformed or restored by therollers 342, 343 of the pump 340.

This pump 340 is connected to the raw material flow path 331 of the mainblock 330, and includes the tube 341 having a section of a U shape.

Further, the pump 340 includes a pump head 347 which is covered by theU-shaped section of the tube 341 and contacts the tube 341, wherein thepump head is provide with a plurality of rollers 342, 343 that have anarrangement configuration in which a gap between the rollers 342, 343 isrelatively narrow.

With the rollers 342, 342 of the narrow arrangement configuration, thehydrogel can be discharged from the nozzle 311 precisely and quickly,and as a result the fixed amount distribution of hydrogel can berealized during the mask pack producing process.

Also, the pump 340 includes a pump motor 346 which has a shaft 346 a forrotating the pump head 347 combined to the pump head 347. The motor pump346 may be a servo motor or a step motor, and rotation speed or rotationangle of the pump head 347 can be finely adjusted by the above-describedcontrol 400.

Further, the pump 340 includes a pump bracket 349 for mounting the pumpmotor 346 to the main block 330,

A plurality of first mount protrusions 349 a having a fastening hole maybe formed on an upper portion of the pump bracket 349, and by thesefirst mount protrusions 349 a, the cooling device 500 may be disposed atthe upper portion position of the pump motor 346. Here, the coolingdevice 500 may play a role of preventing beforehand the pump motor 346front being damaged by a fire or failing to operate due to overheat.

Further, a plurality of second mount protrusions 349 b having aninstallation hole may be formed on a lower portion of the pump bracket:349, and by these second mount protrusions 349 b, a cooling housing 510of the cooling device 500 may be mounted. Also, a third mount protrusion349 c at a side portion of the pump bracket 349 may have a connectionhole and thus be combined to the main block 300 side by a fastening bolt(not shown).

As such, the pump bracket 349 enables the cooling device 500 and thepump 340 to be mounted and disassembled easily, through which themaintenance can be easily performed.

As an example, if repair or maintenance for the pump 340 is needed, onlythe tube 341 can be replaced, and thus there is an effect of shorteningtime for maintenance and reducing cost for it.

Further, the tube housing 344 may have a C-block shape which may beincluded in the pump 340, and which may support and guide a tube. in thetube housing 344, a side portion facing the tube 341 may be opened. Thetube housing 344 may be installed at the pump bracket 349 based on theU-shaped section of the tube 341, in this case, a guide surface of aninner side of the tube housing 344 may be disposed at an outer side ofthe U-shaped section of the tube 341. Therefore, the tube housing 344may play a role of pressing and supporting the tube 341 which is pressedby the roller 342, 343 when the pump head 347 is rotated.

Here, the tube housing 344 may be formed of a Teflon material, which canprevent heat generated at the heater 332 from being transferred to thepump motor 346 by blocking heat transfer to outside.

The pump head 347 of this pump 340 may include a first disc 347 a whichis combined to the shaft 346 a of the pump motor 346 in such a mannerthat it does not contact the guide surface of the tube housing 344,Further, the pump head 347 may include a plurality of roller pins 347 bwhich are arranged along the circumference direction in the first disc347 a and which serve as a rotation base of the rollers 342, 343 whilearranging the rollers 342, 343 in a plurality of layers along the pinextension direction; and a second disc 347 c which has a plurality ofconnection boles combined to end portions of these roller pins 347 band. Which has the same diameter as that of the first disc 347 a.

In this case, each roller 342, 343 may be rotatably installed at theroller pin 347 b through a bearing 343 a disposed on aninnercircumferential portion of the roller. Therefore, even when therollers 342, 343 are rotated in contact with the tube 341, smoothrotation of the roller 342, 343 can be guaranteed, and noise generatedby the rotation of the rollers 342, 343 may be minimized.

Further, the number (e.a. ten) of rollers 342, 343 may be an optimizedvalue for minimizing pulsation which can be generated when a rawmaterial for producing a mask pack, such as hydrogel, is conveyed orpumped, in view of the operation speed of the former 300.

Further, a diameter of the tube 341, a thickness of a tubular wall ofthe tube 341 or the like may be determined correspondingly to a rawmaterial for producing a mask pack and the numbers of and dispositiongap between the rollers 342, 343.

The rotation and revolution of the rollers 342, 343 may press the tube341 in a diameter direction of the tube 341, and as a result, innersurfaces of the pressed tube 341 may be brought into close contact witheach other, so that movement of a raw material in the tube 341 can beblocked. Rotational force of the pump head 347 by the pump motor 346 ofthe pump 340 may be converted to suction and flow force of a rawmaterial, such as hydrogel or the like.

That is, the rollers 342, 343 may be moved along the rotationaldirection of the pump head 347 correspondingly to the rotation of thepump head 347. As the rollers 342, 343 are moved, the compressed tube341 is restored to its original shape, and as a result, suction and flowof the raw material is accomplished by a negative pressure generated inthe tube 341.

That is, as a raw material as much as a flow rate corresponding to aspace between the rollers 342, 343 is repeatedly collected in the tube341, the conveyance of the raw material can be accomplished from theinside of the syringe 312 to the nozzle 311 by way of the raw materialflow path 331 of the main block 330 and the tube 341.

A syringe joint 380 may be laid as a pipe between an upper surface holeof the raw material flow path 331 of the main block 330 and the syringe312. In this case, for the purpose of easiness of replacement of thesyringe 312, an upper end of the syringe joint 380 may be screw-coupledto the syringe 312 so as to be assembled or disassembled, while a lowerend of the syringe joint 380 may be tightly screw-coupled to the uppersurface hole of the raw material flow path 331 of the main block 330.

Further, a nozzle joint 381 may be installed between a lower sufficehole of the raw material flow path 331 of the main block 330 and thenozzle 311. In this case, for the purpose of easiness of replacement ofthe nozzle 311, an upper end of the nozzle joint 381 may bescrew-coupled to a lower surface hole of the raw material flow path 331of the main block 330, while a lower end of the nozzle joint 381 may becoupled with the nozzle 311 in a simple press-fit manner. Therefore, ifthe replacement of the nozzle 311 is needed, a user may extract thenozzle 311 from the nozzle joint 381, and insert a new nozzle (notshown) into the nozzle joint 381.

Meanwhile, the nozzle module 310 may include the syringe heating block334 which is erectly combined to and extended upward from a top plate330 a of the main block 330, and which has a first semi-circularrecessed portion 334 a in contact with an outer circumferential surfaceof a side of the syringe 312.

Here, the top plate 330 a is a U-shaped plate member, and the syringejoint 380 may be disposed in a U-shaped space of the top plate 330 a.

Further, the nozzle module 310 may include a syringe cover block 335which is disposed opposite the syringe heating block 334 with referenceto the syringe 312, and which has a second semi-circular recessedportion 335 a in contact with, an outer circumferential surface ofanother side of the syringe 312.

Further, the nozzle module 310 may include an elastic member 337 whichgenerates an elastic force in such a manner that the syringe cover block335 can be moved toward the syringe heating block 334 relative to thesyringe 312 (e.g., adjusting a gap by use of a spring elastic force),and a coupling member 338 which combines the syringe cover block 335 andthe syringe heating block 334 by way of the elastic member 337. Thenumber of elastic members 337 and the number of the coupling members 338may be the same as the number of guide holes formed in the cornerpositions of the syringe heating block 334.

Here, the coupling member 338 may be a bolt, a tightening screw or thelike. Further, the elastic member 337 may be a spring washer or a coiltype compression spring. The elastic force of the elastic member 337 maybe adjusted by tightening the coupling member 338.

In order to adjust the elastic force by means of this tightening, a boltscrew thread of the coupling member 338 is fastened to a screw hole ofthe syringe cover block 335 after having penetrated through a springhole of the elastic member 337 and a guide hole of the syringe heatingblock 334.

In this regard, the screw hole of the syringe cover block 335 faces thesyringe heating block 334, and is formed at every corner portioncorresponding to the guide hole.

Further, the guide holes of the syringe heating block 334 are formed atfour corners of the syringe heating block 334 respectively based on athickness direction of the syringe heating block 334, and a steppedportion is formed along the circumferential direction in the guide hole.

Therefore, after the elastic member 337 has been inserted into the guidehole of the syringe heating block 334, it can be supported onto thestepped portion in the guide hole. Further, diameters of a bolt head ofthe coupling member 338 and the elastic member 337 are smaller than thatof the guide hole of the syringe heating block 334. Accordingly, thecoupling member 338 and the elastic member 337 may be disposed in theguide hole or the syringe heating block 334 so as to be moved along theguide hole. Further, a left end portion of the elastic member 337disposed in the guide hole contacts and is supported onto the bolt headof the coupling member 338, and the left end portion of the elasticmember 337 contacts and is supported onto the stepped portion in theguide hole.

In such a state, when a certain external force (e.g., a user's fingerforce or a divided force resulting from the inclined direction insertionof the syrinae 312) is applied, in a direction in which the syringecover block 335 is moved away from the syringe heating block 334, thecoupling member 338 screw-coupled to syringe cover block 335 is alsomoved together with the syringe cover blick 335. As a result, the bolthead of the coupling member 338 compresses the elastic member 337, sothat an elastic resilient force can be generated.

As shown in FIG. 4, a gap G which the coupling member 338 and theelastic member 337 are to adjust may mean a clearance space between thesyringe cover block 335 and the syringe heating block 334 in relation toa state where they are in close contact with the syringe 312.

Therefore, although a user installs the syringe 312 slantly while notaligning the insertion direction of the syringe 312 with the z-axis, thegap G can be adjusted by the coupling member 338 and the elastic member337.

For example, when the syringe 312 is inserted slantly, the outer surfaceof the syringe 312 contacts an upper periphery of an innercircumferential surface of the second semi-circular recessed portion 335a of the syringe cover block 335, and consequently the syringe coverblock 335 can be moved in a direction away from the syringe heatingblock 334. In this case, the coupling member 338 may guide the movementof the syringe cover block 335 while at the same time the elastic member337 is compressed and generates the elastic resilient force as describedabove.

The syringe 312 may be installed at the syringe joint 380 by screwrotation, which makes a state here a raw material of hydrogel or thelike of the syringe 312 can flow to the raw material flow path 331 byway of the syringe joint 380.

Meanwhile, after the installation of the syringe 312, the couplingmember 338 and the syringe cover block 335 may return in a direction inwhich they approach the syringe heating block 334 as they are restoredinto an original shape by an elastic resilient force of the elasticmember 337. As a result, the inner circumferential surface of the secondsemi-circular recessed portion 335 a of the syringe cover block 335 canbe brought into dose contact to the outer surface of the syringe 412.

With this, the syringe 312 can be easily disposed and installed at aspace (e.g., a syringe insertion hole) between the first semi-circularrecessed portion 334 a of the syringe heating block 334 and the secondsemi-circular recessed portion 335 a of the syringe cover block 335.

In other words, a user can easily replace the syringe 312, and the thusreplaced syringe 312 is brought into close contact with the innercircumferential surfaces of the first semi-circular recessed portion 334a of the syringe heating block 334 and the second semi-circular recessedportion 335 a of the syringe cover block 335 by means of an elasticforce or elastic resilient force of the elastic member 337. So, the heattransfer from the syringe heating block 334 to the syringe 312 can beeffectively accomplished.

That is, the syringe cover block 335 and the syringe heating block 334form a syringe insertion hole therein with the first and secondsemi-circular recessed portions 334 a, 335 a, and the syringe 312 can beinserted or separated through the syringe insertion hole. As a result,the replacement of the syringe 312 can be performed easily and rapidly.

Particularly, the syringe cover block 335 may include a skirt plateportion 335 b which is integrally extended from a lower surface of thesecond semi-circular recessed portion 335 a and protects the frontsurface of the main block 330 in a non-contact state. Here, there is anadvantage that the skirt plate portion 335 b can be a protecting meansof the pump 340 or the main block 330,

Also, a slit 336 for checking raw material remainder quantity in thesyringe 312 is formed in the syringe cover block 335 so as to penetratethe syringe cover block 335 in a thickness direction Since a casing ofthe syringe 312 is a transparent or semi-transparent material, a usercan intuitively check the remainder quantity of a raw material in thesyringe 312 with user's naked eyes. That is, the slit 336 can provideintuitive and excellent visibility to a user.

Here, the syringe cover block 335 may be formed with a Teflon materialhaving, a low thermal conductivity. By this, the heat inside the syringe312 can be well preserved.

Hereinafter, detailed configuration and operation of the cooling device500 according to the embodiment will be described.

As described above, the nozzle module 310 has the cooling fan 520disposed on an upper portion of the pump motor 346 of the pump 340 whichdischarges hydrogel. As the pump motor 346 may be cooled by the flowgenerated at the cooling fan 520, the device 10 for producing a skincare pack can be stably used for a long period of time. Here, the flowdischarged from the cooling device 500 may be discharged to the workspace 101 of the housing 100 by way of the pump motor 346.

The cooling device 500 may include a fan motor 521 which is disposedbeside the syringe heating block 334, which is electrically connected tothe control unit 400, and which rotates the cooling fan 520. Here, thefan motor 521 may be direct current electric motor having an excellentheat-resistance performance, and is configured to be self-cooled by therotation of the cooling fan 520. Further, the fan motor 521 may be avariable speed motor in which a pulse width modulation or integratedcircuit driving chip for controlling a motor speed is mounted.Therefore, the cooling fan 520 may be rotated at a low or high speed, orstopped correspondingly to an operational signal of the control unit 400depending on temperature change at the time of heat exchange.

Further, the cooling device 500 includes a housing cover 530 which canbe detachably connected to the first mount protrusion 349 a of the pumpbracket 349 by means of a fastening means, such as a bolt. At this time,the fan motor 521 may be installed in the housing cover 530. Further,the housing cover 530 may be fixed to the cooling housing 510. Further,the cooling fan 520 may generate flow in a space formed by the coolinghousing 510 and the housing cover 530. At this time, the cooling fan 520may be accommodated inside the cooling housing 510.

As described above, the cooling, device 500 may include the housingcover 530 which is connected to the first mount protrusion 349 a, and atwhich the fan motor 521 and cooling fan 520 for generating flow areinstalled; and the cooling housing 510 providing a space in which thecooling fan 520 is accommodated, so that flow is formed. At this time,the housing cover 530 may be combined to the first mount protrusion 349a, the main block 330 may be combined to the third mount protrusion 349c, and the cooling housing 510 may be combined to the second mountprotrusion 349 b.

As shown in FIG. 7, the housing cover 530 has a fan aperture 531 and aplurality of bolt holes 532, Here, the fan aperture 531 may have such asize allowing a motor shall of the fan motor 521 or the cooling fan 520to be passed therethrough. Further, the bolt hole 532 may be used toinstall or fix the fan motor 521 by means of a bolt (not shown) with thefan motor 521 disposed outside the housing cover 530.

Like this, the fan motor 521 which is included by the cooling device 500may be installed at the housing cover 530 based on the bolt hole 532with the motor shaft of the fan motor 521 disposed at the center of thefan aperture 531.

Also, there may be provided the cooling fan 520 to the cooling device500, which is combined to the motor shaft of the fan motor 521, andwhich is disposed spaced apart from the upper portion of the pump motor346. As one example, the cooling fan 520 may be a centrifugal fan whichintakes and discharges air in directions perpendicular to the motorshaft. In this case, it is possible to reduce an entire size of thecooling device 500, and thus it is possible to miniaturize the nozzlemodule 310 and the entire device.

When the cooling fan 520 is rotated by the fan motor 521, compressed airmay be generated. The compressed air generated from the cooling fan 520like this passes by an outer surface of the pump motor 346 whileperforming heat exchange with heat of the pump motor 346, or heat of theneighboring components (e.g., main block 330, syringe heating block 334,and syringe cover block 335), thus performing cooling.

Particularly, the cooling device 500 may include the cooling housing 510which can smoothly cause heat exchange by the compressed air. That is,the cooling housing 510 can guide flow generated by the cooling fan 520of the cooling device 500.

The cooling housing 510 may be connected to the second mount protrusion349 b of the pump bracket 349 in a direction in which it faces thehousing cover 530.

For example, the cooling housing 510 may become a boundary of a flowarea of the compressed air while covering the pump motor 346, thecooling fan 520, the main block 330, some area of the syringe heatingblock 334, and some area of the syringe cover block 335.

The pump motor 346 may be accommodated in an inner space of the coolinghousing 510.

The cooling housing 510 may guide the flow of the compressed air suchthat the compressed air generated from the cooling fan 520 can exit(A/OUT) through an air-discharge opening 511. That is, air which hasabsorbed heat of the pump motor 346 may be discharged into the workspace 101 of the housing 100 through the air-discharge opening 511.Here, the air-discharge opening 511 may be opened toward a side.Further, the air-discharge opening 511 may be formed adjacent to thepump motor 346.

Further, the cooling housing 510 has an advantage of reducing fanrotation noise generated from the cooling fan 520 while protecting thecooling fan 520 by covering a neighboring space of the cooling fan 520and the pump motor 346 except the air-discharge opening 511 or an intakeopening 512 or a fine gap.

The air-discharge opening 511 of the cooling housing 510 may be openedin a half direction of the main block 330 with reference to the pumpmotor 346. Therefore, the air which has been heated relatively with theheat exchange may exit rapidly and smoothly through the air-dischargeopening 511 without any separate obstacle, thus exhibiting an excellentheat exchange efficiency.

Further, the housing cover 530 may further include a plurality ofconnection terminal part 402 for connection to an electric wire 401extended from the control unit 400 to the nozzle module 410 in order toconnect the fan motor 521, the heater 332, the pump motor 346 and thetemperature sensor 333 to the control unit 400. Here, the connectionterminal part 402 may be an electrically conductive or connecting deviceincluding a connector, a port, a connection pin, an electric wireconnection hole or the like.

The lower part of the connection terminal part 402 may be disposed in arotation area of the cooling fan 520 without being contacted therewith,and may be cooled by the compressed air of the cooling fan 520.Therefore, there is an effect of be possible to prevent overheatingphenomena of a connection portion of the connection terminal part 402and the electric wire 401 connected thereto.

The housing cover 530, which is a plate or a structure bent at a rightangle, may include a horizontal plate part 533 at which the connectionterminal part 402 is installed, and a vertical plate part 534 which isintegrally bent at the horizontal plate part 533, and at which the fanmotor 521 is installed.

The vertical plate part 534 of the housing cover 530 and the pumpbracket 349 play a role of a barrier wall which divides an area wherethe pump head 347 and the tube 341 are located, from another area wherethe pump motor 346 and the cooling fan 520 are located.

Therefore, the heat of the area necessary for operation of the pump 340cannot be excessively transferred to the other area of the cooling fan520 and the pump motor 346. And, the compressed air generated in thecooling fan 520 can be efficiently used to cool down the pump motor 346.

The housing cover 530 may be fixed to the cooling housing 510 and thepump bracket 349 using a bolt or screw, or may be easily separatedtherefrom by disassembling the bolt or screw. Accordingly, themaintenance for the connection terminal part 402, the fan motor 521 orthe like can be easily performed.

Referring to FIG. 5, the cooling housing 510 includes a lower surfacewall 514 provided with a support rib 513 which closely contacts thesecond mount protrusion 349 b of the pump bracket 349. At the supportrib 513, there is formed a bolt fastening hole corresponding to a mounthole of the second mount protrusion 349 b of the pump bracket 349,

Further, the cooling housing 510 includes a side wall 515 which extendsfrom an end of the lower surface wall 514, and which is provided withthe air-discharge opening 511 that is formed based on a positioncorresponding to the vertical height of the pump motor 346. At the sidewall 515, there may also be formed a bolt or screw fastening part 515 a.In this case, a bolt or screw for fastening, the vertical plate part 534of the housing cover 530 and the cooling housing 510 to each other canbe fastened to the screw fastening part 515 a, and as a result, thecombination between the cooling housing 510 and the housing cover 530can be more stable and firm.

Also, the cooling housing 510 includes another side wall 516 whichextends vertically from another end of the lower surface wall 514, andwhich is provided with the intake opening 512 formed at the upperportion. For example, the intake opening 512 may be opened upward.

The air which is located outside the cooling housing 510 and thus has alower temperature compared to the inside of the cooling housing 510 mayflow into (A/IN) the inside of the cooling housing 510 through theintake opening 512. That is, the air n the work space 101 of the housing100 may be sucked into the space in the cooling housing 510 through theintake opening 512.

Further, the cooling housing 510 includes a finish wall 517 which isintegrally connected to peripheries of the lower surface wall 514, theside wall 515, and the other side wall 516.

Further, the cooling housing 510 may include a guide wall 518 whichintegrally protrudes from the finish wall 517 toward the vertical platepart 534 of the housing cover 530, and which guides the flow F (see FIG.7) of the compressed air generated by the cooling fan 520.

The guide wall 518 may play a role of guiding the air sucked through theintake opening 512 so as to be discharged through the air-dischargeopening 511 via the cooling fan 520.

The guide wall 518 includes a flap 518 a extending toward the lowersurface wall 514 from a lover part of the upper surface wall 519 andhaving a shape of a wall which is inclined toward the air-dischargeopening 511 at an end of the guide wall 518. By this flap 518 a, theflow F of the compressed air can be guided smoothly toward theair-discharge opening 511.

Also, the end of the guide wall 518 may be disposed spaced apart fromthe pump motor 346. Further, between the side surface of the coolinghousing 510, and the guide wall 518 and the pump motor 346, there may beprovided a space through which air can flow.

Here, the guide wall 518 is described by way of example as being formedon the cooling housing 510, but it is not limited to this. For example,the guide wall 518 may be formed on the housing cover 530.

Further, the cooling housing 510 may include a top surface wall 519which is integrally formed at an upper part of the finish wall 517 whileconnecting the upper part of the guide wall 518 and the upper part ofthe other side wall 512.

Further, the cooling housing 510 may include a connection space 519 awhich is formed between the upper part of the side wall 515 and theupper part of the guide wall 518 based on the same level as the uppersurface wall 519, for disposing the horizontal plate part 533 of thehousing cover 530 therein.

In this regard, the connection space 519 a may be formed so that itswidth corresponds to a width of the horizontal plate pan 533 of thehousing cover 530. Therefore, the horizontal plate pan 533 of thehousing cover 530 can be precisely combined to the connection space 519a disposed at the upper part of the cooling housing 510.

In an inner space of the opening 519 a, the cooling fan 520 is disposedso as to be non-contact, and a space between the right surface of theguide wall 518 and the left wall of the other side wall 516 may bespatially connected to the intake opening 512 and become a large airstorage space relative to a cross-sectional area of the intake opening512. Therefore, the air of a lower temperature relative to thecompressed air may be smoothly and continuously sucked through theintake opening 512 from the outside of the cooling housing 510, and maybe changed into the compressed air by the cooling fan 520 after flowinginto the cooling housing 510. This compressed air may exit smoothlythrough the air-discharge opening 511 after performing the heat exchangeas described above. As a result, the cooling device 500 may exhibit anexcellent heat exchange performance.

As such, the embodiment can continuously produce a skin care pack usinghydrogel by adjusting or maintaining a heat load of the pump 340 withina certain temperature range by means of the cooling device 400 of thenozzle module 310.

Further, the flow generated by the cooling device 500 is discharged tothe work space 101 through the air-discharge opening 511 of the coolinghousing 510, which can cause convection currents in the work space 101.Since hydrogel has a property that it is rapidly hardened whentemperature is lower than a certain temperature, temperature inside thework space 101 is necessary to be maintained to a certain temperature,and for this, a heater maybe particularly provided to the platform 200,However, with the heater provided to the platform 200, heat istransferred only to a lower surface of a mask pack which is formed onthe film 20, so an upper surface of the mask pack, particularly, asurficial part may be slightly hardened. However, according to theembodiment, when the convection current is generated in the work space101 by the flow discharged front the cooling device 500, the work space101 can be maintained at a high temperature ambience, and thus thehardening phenomena of hydrogel can be prevented. Particularly, as theair discharged from the cooling device 500 has absorbed the heat of thepump motor 346, such effect as described above can be realized moreexcellently.

Meanwhile, this cooling device 500 may be driven according to apredetermined control algorithm. For example, the cooling device 500 maybe driven at predetermined time intervals, or it may be driven when thetime for which the pump 340 is continuously driven exceeds apredetermined level. Further, the driving of the cooling device 500 maybe controlled according to a measurement of a temperature sensor formeasuring temperature of the pump motor 346, which is separatelyprovided, a measurement of a temperature sensor for measuringtemperature of the work space 101, which is separately provided, ameasurement of the temperature sensor 333 provided at: the main block330 or the like.

In other words, the cooling device 500 may be driven depending on apredetermined condition, and the term of depending on the predeterminedcondition may be understood as being controlled according to one or moreof the cooling device being driven at predetermined time intervals, thetime for which the pump 340, which is a peristaltic pump, iscontinuously driven deviating from a predetermined range, temperature ofthe motor of the peristaltic pump, that is the pump motor 346 deviatingfrom a predetermined range, temperature of the work space 101 departingfrom a predetermined range, and temperature of the main block 330deviating from a predetermined range.

The control unit of the device for producing a skin care pack usinghydrogel as described above moves or stops the base of the platform inthe housing using the z-axis linear driving apparatus, and moves theformer using the x-axis and y-axis linear driving devices, so that itcan control a series of processes of forming a mask pack by discharginghydrogel, which is a raw material for producing a mask pack, toward theplatform through the one nozzle module of the former. As this controlprocess of the device for producing a skin care pack using hydrogel maybe understood as being similar to that of a general 3D printer device.

For example, the control unit 400 may control the relative movementbetween the platform 200 on which a skin care pack is formed and theformer 300 which discharges heated hydrogel. And, hydrogel may bedischarged toward the platform 200 through at least one nozzle module310, 350 which is provided to the former 300.

Further, the control unit 400 may control the temperature of the mainblock 330 or the temperature of hydrogel moving through the main block330 within a temperature range corresponding to a heating condition of askin care pack forming by activating the heater 332 installed in themain block 330.

Further, the control unit 400 may control the relative movement betweenthe platform 200 and the former 300. In this procedure, the control unit400 can activate the pump 340, which is the peristaltic pump, in aforward rotation, so that hydrogel heated by the heater 332 can bedischarged at the nozzle 311 of the nozzle module 310, 350.

Further, the control unit 400 may cool down the motor of the peristalticpump, that is, the pump motor 346 of the pump 340 by activating thecooling device 500 which is provided to a side of the main block 330,according to a predetermined condition. Further, after completing thepattern part of the skin care pack, the control unit 400 may make therelative movement of the platform 200 and the former 300, and return theformer 300 to its initial position.

According to the device for producing a skin care pack using hydrogeland the control method thereof according to an embodiment of theinvention, although hydrogel is used as a raw material in the productionof a user-customized skin care pack, the problem that hydrogel is leakedfrom the nozzle 311 can be prevented, and thus it is possible to producea skin care pack smoothly.

Further, as the hydrogel of a stable heating condition can be dischargedby heating the main block 330 itself, the syringe 312, the pump 340 andthe nozzle 311 through the heater 332 of the main block 330, it ispossible to produce a skin care pack rapidly and precisely in spite ofusing hydrogel.

Further, since the leakage of hydrogel is prevented and fixed amountcontrol is possible by using a peristaltic pump as the pump 340, it ispossible to obtain a high quality hydrogel skin care pack which has auniform thickness, and whose finish treat is neat.

Further, since the control unit 400 receives the input ofuser-customized modelling CAD data and produces a skin care pack bydischarging hydrogel based on them, it is possible to obtain a skin carepack using hydrogel which is optimized to physical body features of auser.

While until now the devices for producing a skin care pack using,hydrogel according to examples of the invention have been described asconcrete embodiments, these are just exemplary embodiments, and thepresent invention should be construed in a broadest scope based on thefundamental technical ideas disclosed herein, rather than being limitedto them. By combining or replacing a part or parts of embodimentsdisclosed herein, the ordinary skilled in the art may carry out apattern of a shape which is not explicitly described herein, andhowever, should be noted that it shall not depart from the scope of theinvention. Besides, the ordinary skilled in the art may easily change ormodify embodiments disclosed herein based on the disclosure, andhowever, it is obvious that such age or modification also falls withinthe scope of the invention.

INDUSTRIAL APPLICABILITY

The invention can be used in the cosmetics industry.

1. A device for producing a skin care pack using hydrogel, the devicecomprising: a housing which is provided with a door for selectivelyopening and closing a work space for forming a skin care pack and whichmaintains a forming temperature required for producing the skin carepack; a platform having a base supported on a floor plate of the workspace of the housing; a former including one or more nozzle moduleswhich are provided to be movable in the work space, each nozzle modulehaving a pump for receiving a heated hydrogel and then discharging sameonto the platform through a nozzle and a cooling device for cooling apump motor of the pump; and a control unit for controlling the dischargeof the hydrogel from the nozzle modules, by controlling the movement ofthe nozzle modules, the operation of the pumps, and the operation of thecooling devices, wherein the cooling device includes a cooling fan whichgenerates flow toward the pump, and which cools down the pump motor withthe flow generated by the cooling fan, the flow discharged from thecooling device is discharged to the work space by way of the pump motor,the cooling device includes a cooling housing which guides flow formedby the cooling fan, and the cooling housing includes an intake openingthrough which air in the work space is sucked, and an air-dischargeopening through which air that has absorbed heat of the pump motor isdischarged to the work space.
 2. The device according to of claim 1,wherein the cooling fan is disposed on an upper part of the pump motor.3. A device for producing a skin care pack using hydrogel, the devicecomprising: a housing which is provided with a door for selectivelyopening and closing a work space for forming a skin care pack and whichmaintains a forming temperature required for producing the skin carepack; a platform having a base supported on a floor plate of the workspace of the housing; a former including one or more nozzle moduleswhich are provided to be movable in the work space, each nozzle modulehaving a pump for receiving a heated hydrogel and then discharging sameonto the platform through a nozzle and a cooling device for cooling apump motor of the pump; and a control unit for controlling the dischargeof the hydrogel from the nozzle modules, by controlling the movement ofthe nozzle modules, the operation of the pumps, and the operation of thecooling devices, wherein the nozzle module includes: a syringe storinghydrogel; a nozzle disposed spaced apart under the syringe; and a mainblock which is disposed between the nozzle and the syringe, whichbecomes a support base of the syringe, which provides a raw materialflow path, and to which a heater for heating hydrogel is mounted, thepump is installed at the main block so as to be penetratingly connectedto the raw material flow path of the main block and pumps a raw materialof the syringe and supplies the same toward the nozzle, and the coolingdevice includes a cooling fan which is disposed at a side of the mainblock and generates flow toward the pump, and a fan motor which rotatesthe cooling fan.
 4. The device according to claim 3, wherein the nozzlemodule includes: a syringe heating block which is erectly combined to atop plate of the main block and which includes a first semi-circularrecessed portion in contact with an outer circumferential surface of aside of the syringe; and a syringe cover block which is disposedopposite the syringe heating block based on the syringe and whichincludes a second semi-circular recessed portion in contact with anouter circumferential surface of another side of the syringe.
 5. Thedevice according to claim 4, wherein the syringe cover block furtherincludes a skirt plate portion which is integrally extended from a lowersurface of the second semi-circular recessed portion and protects themain block.
 6. The device according to claim 3, wherein the coolingdevice includes a cooling housing which guides flow formed by thecooling fan, and the cooling housing includes an intake opening throughwhich air in the work space is sucked and an air-discharge openingthrough which air that has absorbed heat of the pump motor is dischargedto the work space.
 7. The device according to claim 6, wherein the pumpincludes a pump bracket which becomes a support base of a tube housingof the pump motor for mounting the pump motor on the main block, and towhich the cooling housing is combined.
 8. The device according to claim6, wherein the cooling device includes a housing cover at which the fanmotor is installed, and which is fixed to the cooling housing, and thecooling fan generates flow in a space formed by the cooling housing andthe housing cover.
 9. The device according to claim 8, wherein theintake opening is opened upward, the air-discharge opening is openedtoward a lateral direction, and either the cooling housing or thehousing cover includes a guide wall which guides air that has beensucked through the intake opening so that the air can be dischargedthrough the air-discharge opening by way of the cooling fan.
 10. Thedevice according to claim 9, wherein the guide wall includes a flaphaving a shape of a wall which is inclined toward the air-dischargeopening at an end of the guide wall.
 11. The device according to claim9, wherein the end of the guide wall is disposed spaced apart from thepump motor, and between a side surface of the cooling housing, and theguide wall and the pump motor, there is provided a space through whichair can flow.
 12. The device according to claim 6, wherein the pumpmotor is accommodated in an inner space of the cooling housing, and theair-discharge opening is formed adjacent to the pump motor.
 13. Thedevice according to claim 3, wherein the nozzle module includes a pumpbracket which fixes the pump to the main block, the pump bracketincludes: a first mount protrusions which has a fastening hole, andwhich is formed on an upper portion of the pump bracket; a second mountprotrusions which has an installation hole, and which is formed on alower portion of the pump bracket; and a third mount protrusion which isformed at a side portion of the pump bracket, and which has a connectionhole for connection to the main block, the cooling device includes: ahousing cover which is connected to the first mount protrusion, and atwhich a fan motor and a cooling fan for generating flow are installed;and a cooling housing which provides a space in which the cooling fan isaccommodated to form flow, the housing cover is coupled to the firstmount protrusion, the main block is combined to the third mountprotrusion, and the cooling housing is combined to the second mountprotrusion.
 14. The device according to claim 13, wherein the coolingfan is accommodated inside the cooling housing.
 15. The device accordingto claim 6, wherein the air-discharge opening is opened toward adirection opposite the main block based on the pump motor.
 16. Thedevice according to claim 8, wherein the housing cover further includesa plurality of connection terminal parts for connection to an electricwire extended from the control unit to the nozzle module in order toconnect the fan motor, the heater, the pump motor and a temperaturesensor to the control unit.
 17. The device according to claim 16,wherein the housing cover is a plate bent at a right angle and includes:a horizontal plate part at which the connection terminal part isinstalled; and a vertical plate part which is integrally bent at thehorizontal plate part, and at which the fan motor is installed.
 18. Acontrol method of a device for producing a skin care pack using hydrogelwhich forms the skin care pack, in which a control unit controls arelative movement of a platform on which the skin care pack is formedand a former which discharges heated hydrogel, and hydrogel isdischarged toward the platform through at least one nozzle moduleprovided in the former, wherein the nozzle module includes a main blockin which a heater is installed and a peristaltic pump installed in themain block, the control method comprising: controlling a temperature ofthe main block or a temperature of the hydrogel moving through the mainblock within a temperature range corresponding to a heating condition ofa skin care pack forming by activating the heater installed in the mainblock; controlling a relative movement of the platform and the former;discharging the hydrogel heated by the heater from a nozzle of thenozzle module by activating a forward rotation operation of theperistaltic pump; cooling a motor of the peristaltic pump by activatinga cooling device provided at a side of the main block according to apredetermined condition; and returning the former to its initialposition of operation by causing relative movement between the platformand the former after a pattern part of a skin care pack has beencompleted.
 19. The control method according to claim 18, wherein theactivation of the cooling device according to a predetermined conditionis controlled according to one or more of the followings: the coolingdevice being driven at predetermined time intervals; the time for whichthe peristaltic pump is continuously driven departing from apredetermined range; temperature of a motor of the peristaltic pumpdeviating from a predetermined range; temperature of a work space inwhich a skin care pack is formed deviating from a predetermined range;and temperature of the main block deviating from a predetermined range.20. The control method according to claim 18, wherein the cooling deviceincludes a cooling fan and a fan motor which suck air from a work spacein which a skin care pack is formed, generate flow to a motor of theperistaltic pump, and discharge air that has absorbed heat from themotor of the peristaltic pump to the work space.
 21. (canceled)